Finding the Fourth Proportional to 2,074.60, 3,109.74 and 1,088.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.60 : 3,109.74 = 1,088.56 : x
2. Step 2: Convert to fraction form
   2,074.60/3,109.74 = 1,088.56/x
3. Step 3: Cross multiply
   2,074.60x = 3,109.74 × 1,088.56
4. Step 4: Simplify right side
   2,074.60x = 3,385,138.57
5. Step 5: Solve for x
   x = 3,385,138.57/2,074.60
6. Step 6: Final answer
   x = 1,631.71